When I run > bundle install
`An error occurred while installing nokogiri (1.6.2.1), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.2.1'` succeeds before bundling.
Ok, so I run > sudo gem install nokogiri -v '1.6.2.1'
I have this :
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.2.1 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.2.1/ext/nokogiri/gem_make.out
When I run the command : rails g controller...
Could not find gem 'rspec-rails (= 2.13.1) ruby' in the gems available on this machine.
Run `bundle install` to install missing gems.
Please help me!